Half to john b



(No Model.) 2 sheetssheet 1'.

F. ST. CLAIR. GoNvE-YER P08 CARRYING GRUSHED sToNB.

No. 448,488. Patented Dec. 28,1890.

(NoModel.) i zsneets-sheet 2.

F. ST. CLAIR.

GONVEYER PoR CARRYING GRUSHED STONE. n No. 443,488. Patented Deo. 23,'1890.

UNITED. STATES HPATENT OFFICE.

FRANK ST. CLAIR, OF MANCHESTER, NE\V HAMPSHIRE, ASSIGNOR OF ONE- l-lALFTO JOHN B. VARIOK, OF SAME PLACE.

CONVEYER FOR CARRYING CRUSHED STONE.

SPECIFICATION forming part of Letters Patent No. 443,488, dated December23, 1890.

Application filed April 28, 1890. Serial No. 349,817. (No model.)

To all 1071/0111, t may concern:

Be it known that I, FRANK ST. CLAIR, a citizen of the United States,residing at Manchester, in the county of Hillsborough and State of NewHampshire, have invented certain Improvements in Conveyers for CarryingCrushedI Stone, Ore, Coal, tbc., of which the following is a full,clear, and exact description, reference being had to the accompany- Ioing drawings, making part of this specification, in which- Figure l is aside elevation of a conveyer constructed in accordance with myinvention. Fig. 2 is a plan ot' the same. Fig. 3 is a longitudinalvertical section on the line wx of Fig. 2. Fig. It is an enlargedvertical section of a portion of the endless carrying-belt and itsprojecting plates. Fig. 5 is a transverse Vertical section, enlarged, onthe line zo y y of Fig. 2. Fig. 6 is a perspective view of one of thebeltprote`cting plates or lags detached. Fig. 7 is a rear elevation ofthe apparatus.

My invention relates to conveyers for car- 2 5 rying crushed stone,ores, coal, grain, or other substances requiring to be moved from onepoint to another, and has for its object to provide a simple, durable,and effective apparatus of this description which will pergo form itsworkin a rapid and reliable manner vand in which the bearings andmovable parts will be effectually protected from injury by dust or grit.v

To this end my invention consists in aconveying apparatus embodyingcertain novel combinations of parts and details of construction, ashereinafter fully described, and specilically pointed out in the claims.

In the said drawings, A represents the 4o framework of the conveyer, atthe opposite ends of which are placed two flanged drums B C, over whichis loosely stretched an endless carrying-belt D, composed of leather,rubber, or other suitable flexible material,

the shaft of the drum B, by which the beltD is driven, being providedwith fast and loose pulleys, over which passes a driving-belt. (Notshown) The upper tight or straight part of the belt D, which is adaptedto re- 5o ceive and carry from one point to another crushed stone, coal,ore, grain, or other substance which may be allowed vto fall thereupon,is supported by and runs upon aseries of plain Wooden rollers F,protected and strengthened at their ends by metal rings and providedwith gudgeons or journals which run in boxes G, bolted to the sides ofthe frame-work A. The lower or slack portion of the belt is carried upona series ot' metallic disks or pulleys b, mounted upon shafts 6o c, thejournalsof which run in boxes d, secured to the lower Yside bars of theframework A, as seen in Fig. l.

The outer or carrying surface of the beltD is covered with a series ofnarrow metallic 55 protecting plates or lags e, extending transverselyacross the same and secured thereto by bolts f and nuts l0, as seen inFig. 4, said lags being arranged closely together and having the jointsor spaces between their adjoin- 7o ing edges covered by narrow metallicstrips g, each of which is secured to one of the plates e by the samebolts f, which hold the latter to the belt in such manner that it willlap over the edge of the adjoining plate, as seen in Fig. at, the beltbeing thus provided with a continuous metallic surface, whicheffectually protects its surface from abrasion and wear while carryingthe material from point to point, and in no wise interferes with 8o itsexibility, thus permitting it to pass freely around the driving andsupporting drums B C, as required.

The heads of the bolts f are extremely fiat, so that when drawn uptightly against the S5 belt they will lie close to its surface andpresent no obstruction to its free movement as it passes over the drumsand rollers, and the disks or pulleys b are so arranged upon theirshafts with respect to the projecting ends of 9o the bolts fand the nutsl0 on the opposite side of the belt as to avoid interference therewithas the said belt is carried around.

The ends 12 of the plates or lags e are turned up at right angles, asshown in Figs. 4t, 5, and (i, and to an inwardly-projecting strip orportion 7L on each side of the framework A is secured a long metallicstrip H, forming a stationary shield or side piece, the lower portion ofwhich overlaps the inner side roo of the ends 12 of the plates e, whichare turned up on the outside of the said plate H, as seen in Fig. 5, thelower edge l5 of the latter extending down so as to almost touch theupper` surfaces of the lags e, a space z' being thus left between thesaid strip Il and the frame A, through which the turned-up ends l2 otthe lags move freely while the belt is in motion.

The plates Il, arranged, as described, at the opposite edges of thebelt, thus form stationary side pieces or guards, which eifectuallyretain all the material which is dropped on the metallic covering of thebelt and prevent it from rolling oit at the sides orgettiug into thebearings of the supporting-rollers.

The shaft of the carryingdrum C at the lower end of the couveyer is hungin a frame l, composed ot side pieces m, which are independently hingedor pivoted to the framework A at n, and the lower ends oi the sidepieces m are made ad j ust-able toward and from the frame-work A bymeans ot screws p, Figs. l and 3, by turning which either end of thedrum C can be moved independently to tighten f secured thereto andextending transversely either side of the belt D, which can in thismanner be caused to run evenly upon its drums, as desired.

The carrying-drum B, which is located at the outer or higher end of theconveyer, is

driven by its belt at a properspeed to convey Q and elevate at anydesired angle all material dropped from a stone-Crusher or other machinelocated over the lower end ot the cndless belt and deliver the saidmaterial, when the outer side of the driving-drum isreached, into a binor cart, as may be desired, and at this point, during its fall into thesaid bin or cart, the material is, if desired, thoroughly sprinkled orwet down by a spray ot water discharged thereupon from a perforatedsprinklingtube lx' and falls upon an inclined board L, from the loweredge of which it drops directly onto the material immediately after ithas left the belt, the board L being so placed as to intercept the waterand prevent any liability of its coming into contact with and wettingthe belt, which would be injured thereby if composed of leather. Forinstance, in the operation of crushing granite or other rock formacadamizing purposes it is desirable to have the erusher inside ot' abuilding or shed and to deliver the crushed stone outside and at aheight sufficient to enable it to fall into a cart and at the same timewet it down thoroughly to prevent a large quantity of small particlesfrom being blown away and into the moving,r parts and bearings of themachine. \Vith my improved machiue all these advantages are gained in anexceedingly simple and inexpensive manner.

The abovedeseribed conveyer may be used for conveying material ofvarious kinds and for an infinite variety of different purposes and willbe found effective and reliable under all conditions, while it issimple, inexpensive, and free from liability to get out of order.

lVhat I claim as my invention, and desire to secure by Letters Patent,is-

l. In a conveyor, an endless flexible carrying-belt supported on rollersor drums and provided on its outer orcarryingsiufaee with metallicprotectingr plates or lags secured thereto and extending1 transverselyacross the same, in combination with stationary side plates or shieldsarranged at the edges of said belt and extending down nearly to thelevel ot the same, whereby the material heilig carried is prevented fromdropping ott' at the edges ot' the belt, substantially as set forth.

In a conveyer, an endless flexible carrying-belt provided ou its outeror carrying surface with metallic protecting plates or lags across thesame and having their opposite ends turned up, substantially asdescribed, and the joints between said plates being pro teeted by narrowmetallic covering-strips, each secured to one plate at its edge andlapping over the edge ofthe plate contiguous thereto, in combinationwith stationary side plates or shields arranged at the edges of saidbeltand extendingdown over the inner sides of the turned-up portions ofthe protecting plates, substantially as described.

3. In a conveyer, the combination,'with an endless flexiblecarrying-belt D, supported on 9 rollers or drums, of a series oftransverse metallic covering plates or lags e, secured thereto on itsouter or carrying surface, and having their opposite ends 12 turned upat an angle, the joint-covering plates g each bolted to the upper sideof one ot' the plates e and lapping over the edge of the adjoiningplate, and the stationary plates or shields Il, secured to the sides ofthe frame-work and projecting down nearly to the. level ot' the belt andoverlapping the inner sides of the turned-up ends l2 of the plates c,said ends traveling in the spaces 'i between the plates or shields Iland the sides ot the frame-work, substantially as described.

NVitness my hand this 23d day ot April,A. D. 1890.

WILLIAM II. DRURY, ROBERT J. PEASLEE.

IOO

